Finding the Fourth Proportional to 13,591,521.18, 18,753,580.35 and 7,792,122.06
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Solution
The fourth proportional to 13,591,521.18, 18,753,580.35 and 7,792,122.06 is: 10,751,569.69
Step by Step Solution
- Step 1: Write the proportion equation
13,591,521.18 : 18,753,580.35 = 7,792,122.06 : x - Step 2: Convert to fraction form
13,591,521.18/18,753,580.35 = 7,792,122.06/x - Step 3: Cross multiply
13,591,521.18x = 18,753,580.35 × 7,792,122.06 - Step 4: Simplify right side
13,591,521.18x = 146,130,187,149,217.53 - Step 5: Solve for x
x = 146,130,187,149,217.53/13,591,521.18 - Step 6: Final answer
x = 10,751,569.69
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.